Mitsubishi Electric Corporation

Fumio Shoda

Takayuki Yanagisawa

Hidenori Fukahori

Shuhei Yamamoto

Mitoru Yabe

Tetsuya Nishimura

Kyosuke Kuramoto

Yoko Inoue

Kohei Sakai

Yosuke Akino

Mizuki Shirao

Yojiro Watanabe

Tetsuo Funakura

Takeshi Sakimura

Yukari Takada

Yuhi Kono

There are provided: a planar waveguide in which claddings () and () each having a smaller refractive index than a laser medium for absorbing pump light () are bonded to an upper surface () and a lower surface () of a core () which is formed from the laser medium; pump light generation sources () and () for emitting pump light () to side surfaces () and () of the core (); and laser light high reflection films () and () formed on side surfaces () and () of the core (). Each of side surfaces () and () of the cladding () corresponding to the side surfaces () and () of the core () has a ridge structure () in which a part thereof is recessed.

Planar waveguide laser apparatus

The multi wavelength laser device includes a laser light sourcethat emits a plurality of laser lightswhose fundamental wavelengths differ from one another, a dispersing elementthat changes the traveling direction of each of the plurality of laser lights according to the wavelength and the incidence direction, and that emits the laser lights in a state in which the laser lights are superposed on the same axis, and a wavelength conversion elementthat has a plurality of polarization layers disposed therein and having different periods, and that performs wavelength conversion on the fundamental wave laser lights emitted from the dispersing elementand placed in the state in which the laser lights are superposed on the same axis, and emits a plurality of laser lightsacquired through the wavelength conversion in a state in which the laser lights are superposed on the same axis.

Multi wavelength laser device

A laser output measuring apparatus in which an optical separator is disposed in a position that is rotated by a predetermined angle about an optical axis of a laser beam converged by a lens, and further rotated by a predetermined angle about the optical axis of the laser beam and a straight line perpendicular to an incident surface of the laser beam.

Laser output measuring apparatus

A laser mediumis shaped like a plate and has a waveguide structure in a direction of the thickness of a surface thereof perpendicular to the optical axis thereof. A nonlinear materialis placed on the optical axis of the laser mediumclose to the laser mediumand has a waveguide structure in the same direction as that of the waveguide structure of the laser medium. A &#xbc; wavelength plateis placed close to one of surfaces, which are perpendicular to the optical axis, of the nonlinear material, the one being opposite to a surface close to the laser medium

Planar waveguide laser device

Growing community of inventors

Tokyo, Japan

Fumio Shoda